EP3560854B1 - Tamper evident container - Google Patents
Tamper evident container Download PDFInfo
- Publication number
- EP3560854B1 EP3560854B1 EP19171054.0A EP19171054A EP3560854B1 EP 3560854 B1 EP3560854 B1 EP 3560854B1 EP 19171054 A EP19171054 A EP 19171054A EP 3560854 B1 EP3560854 B1 EP 3560854B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking
- panel
- locking flap
- side wall
- closure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000853 adhesive Substances 0.000 claims description 55
- 230000001070 adhesive effect Effects 0.000 claims description 55
- 239000000463 material Substances 0.000 claims description 12
- 239000011087 paperboard Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 description 6
- 210000004905 finger nail Anatomy 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
- B65D5/10—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed by inward-folding of self-locking flaps hinged to tubular body
- B65D5/103—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed by inward-folding of self-locking flaps hinged to tubular body one of the self-locking flaps having a tongue engaging into an opening of an opposite flap
- B65D5/106—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed by inward-folding of self-locking flaps hinged to tubular body one of the self-locking flaps having a tongue engaging into an opening of an opposite flap the opening being a slot
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
- B65D5/0254—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed by inward folding of flaps and securing them by means of a tongue integral with one of the flaps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
- B65D5/0227—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end closures formed by inward folding of flaps and securing them by heat-sealing, by applying adhesive to the flaps or by staples
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/4266—Folding lines, score lines, crease lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
- B65D5/5405—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form
- B65D5/541—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in one or more closure flaps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/64—Lids
- B65D5/66—Hinged lids
- B65D5/6626—Hinged lids formed by folding extensions of a side panel of a container body formed by erecting a "cross-like" blank
- B65D5/665—Hinged lids formed by folding extensions of a side panel of a container body formed by erecting a "cross-like" blank the lid being held in closed position by self-locking integral flaps or tabs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2401/00—Tamper-indicating means
- B65D2401/10—Tearable part of the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2401/00—Tamper-indicating means
- B65D2401/15—Tearable part of the closure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2401/00—Tamper-indicating means
- B65D2401/15—Tearable part of the closure
- B65D2401/35—Vertical or axial lines of weakness
Definitions
- the present invention relates to tamper evident containers made of cardboard, paperboard or other flexible sheet materials.
- containers for example containers containing pharmaceutical products
- containers to provide evidence that the container may have been opened so as to prevent a malicious third party opening the container and potentially tampering with its contents after the container has been filled and before it is purchased or obtained by an end user.
- the present invention provides a container of this type.
- DE202010014299U1 discloses a prior art tamper evident container as set forth in the preamble of claim 1.
- DE602004007700T2 discloses a prior art closure system for a container.
- US 2005/199692 A1 discloses a prior art blank capable of forming a container having rounded corners.
- the invention may provide a tamper evident container made from cardboard, paperboard or other lightweight foldable sheet material as recited in claim 1.
- the side edges of the closure flaps may be ramped so as to define the locking slots with the other side wall panel of the first pair of side wall panels only at a proximal end region of the closure flaps thereof adjacent the respective side wall panel.
- the frangible line of weakness may comprise a partial thickness cut.
- the container may further comprise an opening tab defined in the lid panel at the frangible line of weakness, and interrupting the line of weakness.
- the container may further comprise a refastenable re-closure arrangement that includes cooperating parts associated with each of the first and second closure flaps for releasably interlocking the first and second closure flaps together.
- the series of joined panels comprises a lid panel, a first locking flap panel and a second locking flap panel.
- the lid panel is hingedly attached at a proximal edge to the one side wall panel of the first pair of side wall panels about the lid fold line.
- the first locking flap panel is hingedly attached at a proximal edge to a distal edge of the lid panel about a frangible line of weakness.
- the second locking flap panel is hingedly attached at a proximal edge to a distal edge of the first locking flap panel about a locking flap fold line and foldable about the locking flap fold line so as to lie behind and in a face to face relationship with the first locking flap panel.
- a distal end of the second locking flap panel includes at least one free edge forming a locking edge.
- the second locking flap panel may comprise a pair of cut lines which extend to the distal edge of the second locking flap panel so as to define the adhesive tab therebetween, and a pair of locking edges on the distal edge on either side of the adhesive tab.
- the adhesive tab may be formed in a central region of the distal edge of the second locking flap panel.
- the adhesive tab may be defined in the second locking flap at a spacing from the distal edge.
- the adhesive tab may be hingedly attached to the distal edge of the second closure flap panel about an adhesive tab fold line.
- the adhesive tab may extend across only a portion of the distal edge of the second closure flap panel.
- the frangible line of weakness may comprise perforations.
- the blank may further comprise an opening tab defined in the lid panel at the frangible line of weakness, and interrupting the line of weakness.
- the container 2 comprises a container body 6 comprising a first pair of opposed side wall panels 8, 10 and a second pair of opposed side wall panels 12, 14.
- the side wall panels 8, 10, 12, 14 are hingedly attached to each about respective side wall fold lines 16.
- a glue tab 18 is hingedly connected to a first panel 8 of the first pair of opposed side wall panels 8, 10 about a further hinge line 20.
- the container 2 further comprises a lid 22, 22' at opposed ends 24, 24' of the container body 6.
- a first lid 22 is hingedly attached to the first panel 8 of the first pair of opposed side wall panels 8, 10 about a first lid fold line 26.
- a second lid 22' is hingedly attached to the second panel 10 of the first pair of opposed side wall panels 8, 10 about a second lid fold line 26'.
- the construction and assembly of the first and second lids 22, 22' is the same, so only the construction and assembly of the first lid 22 will be described in detail below.
- the container 2 further comprises first and second closure flaps 28, 30, 28', 30' at the respective ends 24, 24' of the container body 6. As the construction and arrangement of the closure flaps at either end of the container body 6 is the same, only the details of the closure flaps 28, 30 at end 24 will be described in detail below.
- the first lid 22 comprises a lid panel 50 which is hingedly attached at a proximal edge 52 to the one panel 8 of the first pair of side wall panels 8, 10 about the lid fold line 26.
- the lid 22 further comprises a locking flap 56.
- the locking flap 56 comprises a first locking flap panel 58 hingedly attached at a proximal edge 60 to a distal edge 62 of the lid panel 50 about a frangible line of weakness 64.
- the frangible line of weakness 64 is illustrated as a perforation or line of cuts. In other embodiments, however, the line of weakness 64 may be formed as a partial cut through the depth of the panel material. The partial cut may be made from the side of the panel which will be outermost in use.
- the locking flap 56 further comprises a second locking flap panel 66 which is hingedly attached at a proximal edge 68 to a distal edge 70 of the first locking flap panel 58 about a locking flap fold line 72.
- a second locking flap panel 66 which is hingedly attached at a proximal edge 68 to a distal edge 70 of the first locking flap panel 58 about a locking flap fold line 72.
- the second locking flap panel 66 is folded inwardly about the locking flap fold line 72 so as to lie behind and in a face to face relationship with the first locking flap panel 58.
- the distal edge 74 of the second locking flap panel 66 comprises at least one free edge portion 76 for forming a locking edge.
- the locking flap 56 is insertable into the locking slots 36, 38 such that the at least one locking edge 76 of the second locking flap panel 66 engages behind the proximal portions of the closure flaps 28, 30 so as to lock the lid 22 in position.
- the second locking flap panel 66 is folded behind the first locking flap panel 58 and hingedly attached thereto about the locking flap fold line 72. However, the second locking flap panel 66 is also adhered to the first locking flap panel 58 adhesively.
- the second locking flap panel 66 is adhered to the first locking flap panel 58 through a tab 80 which is defined in the second locking flap panel 66 between a pair of cut lines 82 which extend to the distal edge 74 thereof.
- the cut lines 82 are L-shaped, the portions 84 of the cut lines 82 extending parallel to the distal edge 74 allows the a side portions 86 of the second locking flap panel 66 arranged to either side of the tab 80 to flex more easily away from the first locking flap panel 50 due to the folding of the second locking flap panel 66 around the locking flap fold line 68, thereby spacing the locking edges 76, which are formed on those side regions 86 on either side of the adhesive tab 80, to be spaced from the underlying regions of the first locking flap panel 50, thereby improving the locking into engagement with the locking slots 36, 38.
- This can be seen, for example, in Figure 6 .
- the adhesive tab 80 may be adhesively attached to the first locking flap panel 58 at an adhesive location 88.
- An adhesive such as a hot melt adhesive or a water-based adhesive may be applied to the adhesive location during direction of the container 2. It will be understood that the adhesive attachment of the second locking flap panel 66 to the first locking flap panel 58 will prevent the second locking flap panel 66 simply unfolding relative to the first locking flap panel 58.
- the adhesive tab 80 is formed in a central region of the distal edge 74 of the second locking flap panel 68.
- an opening tab 90 is provided in the lid 22.
- the opening tab 90 projects from the lid panel 50 and is formed by a cut line 92 which extends from the lid panel 50 across the frangible line of weakness 64 into the first locking flap panel 58.
- the cut line 92 therefore interrupts the frangible line of weakness 64.
- the opening tab 90 will allow a user to insert his or her fingernail behind the tab so as to pull open the lid 22.
- the locking flap 56 may then be rotated in a direction D about the frangible line of weakness 64 and the lid 22 rotated about the lid hinge line 26 in a direction E (as shown in Figure 2 ) such that the locking flap 56 enters the container body through the locking slots 36, 38.
- the locking edges 76 of the second locking flap panel 66 lift away somewhat from the first locking flap panel 58 so as to lie behind the respective closure flaps 28, 30. This locks the lid 22 in position.
- Figures 11 to 15 illustrate a container 202 according to a third embodiment of the invention.
- the container 202 of this embodiment is similar to that of the first and second embodiments and only the differences compared to those embodiments will be described in detail.
- an adhesive tab 280 is hingedly attached to the distal edge 274 of the second locking flap panel 66 about an adhesive tab fold line 282.
- the adhesive tab fold line 282 forms part of a continuous locking edge 276 defined at the distal edge of the second locking flap panel 66.
- the adhesive tab 280 creates a stand-off between the first and second locking flap panels 58, 66 to facilitate engagement of the locking edge 276 behind the closure flaps 28, 30, as shown in Figure 15 .
- the adhesive tab 280 extends only across a portion of the distal edge 274 of the second locking flap panel 66, in a central region thereof. In other embodiments, the adhesive 280 extend across the entire distal edge 274.
- FIGS 16 , 17 and 18 illustrate a further embodiment of a container 2 in accordance with the invention incorporating a refastenable re-closure feature for closing an end of the container 2 having a lid as earlier described.
- This refastenable re-closure feature is illustrated as being incorporated in a container 2 in accordance with the first embodiment of the invention, wherein the adhesive locking tab 80 is defined in the second locking flap panel 66 between a pair of cut lines 82 which extend to the distal edge 74 thereof.
- a refastenable re-closure feature may be incorporated with any of the other embodiments described herein i.e. the embodiments of Figures 7 to 12 or 11 to 15 , at one or both ends thereof.
- Such a refastenable re-closure feature may alternatively or additionally be arranged at the second end 24' of the container body 6 for closing the second end.
- the embodiment illustrated in Figures 16-18 includes a refastenable re-closure feature at both ends.
- the refastenable re-closure feature includes a locking tab 94 associated with the first closure flap 28 and an opening 96, illustrated as a slot, in the second closure flap 30. It will be appreciated that alternatively the locking tab 94 may be associated with the second closure flap 30 and the opening 96 may be in the first closure flap 28.
- the opening 96 is configured to receive the locking tab 94 and releasably interlock therewith in a closed configuration of the end of the container 2.
- the locking tab 94 is retained by an edge 105 of the opening, which acts as a locking edge.
- the opening 96 need not be in the form of a slot, provided that it is able to function in this manner.
- the first closure flap 28 includes a re-closure panel 95 hingedly attached to a distal edge 97 of the first closure flap 28 about a foldline 101.
- the locking tab 94 is formed by a cutline which extends from the re-closure panel 95 across the foldline 101 into the first closure flap 28.
- the free edge of the locking tab 94 formed in this manner is denoted 103.
- the direction of rotation will be in an anticlockwise direction from the viewpoint of Figure 17 in the direction of the arrow A.
- This enables the locking tab 94 to be inserted into the opening 96 when the first closure flap 28 is folded over the second closure flap 30.
- the re-closure panel 95 When the re-closure panel 95 is released, it will return to a position as shown in Figure 18 , in a plane closer to that of the first closure flap 28.
- the first closure flap 28 In this closed configuration of the end 24 of the container 2, the first closure flap 28 is substantially flat and overlies the second closure flap 30, with the locking tab 94 retained in the opening 96.
- a pair of stubs 99 may be defined on either side of the locking tab 94, between the edge of the locking tab 94 and the portion of the foldline 101 on the respective side of the locking tab 94. This may be achieved using a suitable configuration of the cutline which defines the locking tab 94.
- These stubs 99 extend from the first closure flap 28 across the foldline 101 into the re-closure panel 95, and will project from the distal end 97 of the first closure flap 28 when the re-closure panel 95 is rotated about the foldline 101 during closing of the end 24 of the container 2, to define a corresponding space 107 between the edge of the locking tab 94 and the end of the portion of the foldline1 01 on the respective side of the locking tab 94.
- the stubs extend in the direction opposite to the locking tab 95 relative to the foldline 101 i.e. distally rather than proximally.
- the presence of the stubs may mitigate stress concentration around the joins between the locking tab 94 and the foldline 101, reducing the likelihood of a tear developing in use.
- the stubs have rounded ends to assist in this function.
- the stubs may also help to facilitate rotation of the re-closure panel 95 about the foldline 101.
- the opening 96 may be of an arcuate shape as illustrated in Figures 16 and 17 , or any other suitable shape, such as a rectangular or crescent shape.
- the locking tab 94 may have a semi-circular shape, as illustrated, or any other suitable shape, such as rectangular or triangular.
- the opening 96 may be located in any location on the second closure flap 30, provided it is located relative to the locking tab 94 such that the locking tab 94 may be inserted into the opening 96 in the manner described above when the first closure flap 28 is located over the second closure flap 30 during closing of the end 24 of the container.
- the closure flaps 28, 30 do not each extend the whole way between a pair of opposed side wall panels 12, 14, and the opening 96 is in the middle of the second closure flap 30.
- the position of the opening may vary depending e.g. upon the relative extents of the first and second closure flaps 28, 30 and/or the first closure flap 28 and the re-closure panel 95, the position of the opening may vary.
- the re-closure feature enables the container 2 to be closed even after the frangible line of weakness 64 is broken and the locking flap 56 can no longer lock the lid panel 50 in position.
- the user will fold the lid panel 50 over the end 24 of the container 2, and then fold the second closure flap 30 over the lid panel 50, and the first closure flap 28 over the second closure flap 30, rotating the re-closure panel 95 about the foldline 101 as illustrated in Figures 16 and 17 to cause the locking tab 94 to project relative to the first closure flap 28 for insertion in the opening 96 in the second closure flap 30 to thereby releasably lock the first and second closure flaps 28, 30 together.
- the lid panel 50 is held behind the interlocked closure flaps 28, 30, keeping the container in a closed, compact configuration.
- the region 100 of the second closure panel 30 distal to the opening 96 under which the locking tab 94 has been inserted, is visible. It will remain evident that the container 2 has already been opened; however the user will be able to re-close the container 2 to keep any contents therein.
- the user may disengage the locking tab 94 from the opening 96 to open the end 24 of the container once more 24 to gain access to the contents thereof.
- the refastenable closure feature may be used to repeatedly refastenably close the end 24 of the container.
- refastenable closure at the other end 24' of the container shown in the embodiment of Figures 16-18 is identical to that described in relation to the end 24, and may include any or all of the features described in relation to the closure at the end 24.
- a refastenable closure may be provided at either one or both of the ends of the container, and need not be present at both ends as illustrated in the embodiment shown.
- refastenable re-closure feature is applied, it is envisaged that other forms of refastenable closure may be used, which need not involve a locking tab being defined in the manner of the illustrated embodiment, extending from a re-closure panel 95 associated with the first closure flap 28.
- a locking tab may project directly from a distal end of the first closure flap 28, or be defined within the first closure flap 28 in any suitable manner.
- other forms of refastenable closure need not necessarily involve a cooperating tab and opening associated with ones of the first and second closure flaps.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cartons (AREA)
Description
- The present invention relates to tamper evident containers made of cardboard, paperboard or other flexible sheet materials.
- There is a growing need for containers, for example containers containing pharmaceutical products, to provide evidence that the container may have been opened so as to prevent a malicious third party opening the container and potentially tampering with its contents after the container has been filled and before it is purchased or obtained by an end user.
- The present invention provides a container of this type.
-
DE202010014299U1 discloses a prior art tamper evident container as set forth in the preamble of claim 1. -
DE602004007700T2 discloses a prior art closure system for a container. -
DE 93 06900 U1 discloses a prior art cardboard box. -
US 2005/199692 A1 discloses a prior art blank capable of forming a container having rounded corners. - From one aspect, the invention may provide a tamper evident container made from cardboard, paperboard or other lightweight foldable sheet material as recited in claim 1.
- There is also provided a tamper evident container made from cardboard, paperboard or other lightweight foldable sheet material as recited in claim 3.
- There is also provided a tamper evident container made from cardboard, paperboard or other lightweight foldable sheet material as recited in
claim 4. - In accordance with the invention in any of its aspects or embodiments, the side edges of the closure flaps may be ramped so as to define the locking slots with the other side wall panel of the first pair of side wall panels only at a proximal end region of the closure flaps thereof adjacent the respective side wall panel.
- The frangible line of weakness may comprise perforations.
- The frangible line of weakness may comprise a partial thickness cut.
- The container may further comprise an opening tab defined in the lid panel at the frangible line of weakness, and interrupting the line of weakness.
- The container may further comprise a refastenable re-closure arrangement that includes cooperating parts associated with each of the first and second closure flaps for releasably interlocking the first and second closure flaps together.
- In some embodiments, the cooperating parts may include a locking tab associated with one of the first and second closure flaps and an opening associated with the other of the first and second closure flaps. The opening may be configured to receive the locking tab for releasably interlocking the first and second closure flaps together. The container may further include a re-closure panel hingedly attached along a fold line to a distal edge of the one of the first and second closure flaps having the locking tab associated therewith, wherein the locking tab interrupts the foldline. The locking tab may be formed by a cutline which extends from the re-closure panel across the foldline into the one of the first and second closure flaps.
- In other embodiments, a pair of stubs may be defined on either side of the locking tab between the edge of the locking tab and the portion of the foldline on the respective side of the locking tab. The stubs may have rounded ends.
- There is also provided a blank made from cardboard, paperboard or other lightweight foldable sheet material for a tamper evident container. The blank comprises: a first pair of opposed side wall panels and a second pair of side wall panels, the side wall panels being hingedly attached to each other about respective side wall fold lines; a series of joined panels hingedly attached to one side wall panel of the first pair of opposed side wall panels about a lid fold line; first and second closure flap panels, each hingedly attached to a respective one of the second pair of opposed wall panels about respective closure flap fold lines for defining respective locking slots between a side edge of the respective closure flap panels and the other side wall of the first pair of side wall panels when the container is erected. The series of joined panels comprises a lid panel, a first locking flap panel and a second locking flap panel. The lid panel is hingedly attached at a proximal edge to the one side wall panel of the first pair of side wall panels about the lid fold line. The first locking flap panel is hingedly attached at a proximal edge to a distal edge of the lid panel about a frangible line of weakness. The second locking flap panel is hingedly attached at a proximal edge to a distal edge of the first locking flap panel about a locking flap fold line and foldable about the locking flap fold line so as to lie behind and in a face to face relationship with the first locking flap panel. A distal end of the second locking flap panel includes at least one free edge forming a locking edge.
- The blank may further comprise an adhesive tab.
- In some embodiments, the second locking flap panel may comprise a pair of cut lines which extend to the distal edge of the second locking flap panel so as to define the adhesive tab therebetween, and a pair of locking edges on the distal edge on either side of the adhesive tab. The adhesive tab may be formed in a central region of the distal edge of the second locking flap panel.
- In other embodiments, the adhesive tab may be defined in the second locking flap at a spacing from the distal edge.
- In yet other embodiments, the adhesive tab may be hingedly attached to the distal edge of the second closure flap panel about an adhesive tab fold line. The adhesive tab may extend across only a portion of the distal edge of the second closure flap panel.
- In accordance with the invention in any of its aspects or embodiments, the side edges of the closure flaps may be ramped.
- The frangible line of weakness may comprise perforations.
- The frangible line of weakness may comprise a partial thickness cut.
- The blank may further comprise an opening tab defined in the lid panel at the frangible line of weakness, and interrupting the line of weakness.
- Some embodiments will now be described, by way of example only, with reference to the accompanying drawings in which:
-
Figure 1 shows a perspective view of a first embodiment of container in accordance with the present invention; -
Figure 2 shows the container ofFigure 1 in a partially erected condition; -
Figure 3 shows a blank for making the container ofFigure 1 ; -
Figure 4 shows an intermediate stage in the erection of the container ofFigure 1 ; -
Figure 5 shows a further stage in the erection of the container ofFigure 1 ; -
Figure 6 shows a sectional view along line VI-VI ofFigure 1 ; -
Figure 7 shows a perspective view of a second embodiment of container in accordance with the present invention; -
Figure 8 shows a blank for making the container ofFigure 7 ; -
Figure 9 shows an intermediate stage in the erection of the container ofFigure 7 ; -
Figure 10 shows a sectional view along line X-X ofFigure 7 ; -
Figure 11 shows a perspective view of a third embodiment of container in accordance with the present invention; -
Figure 12 shows a blank for making the container ofFigure 11 ; -
Figure 13 shows an intermediate stage in the erection of the container ofFigure 11 ; -
Figure 14 shows a further stage in the erection of the container ofFigure 11 ; and -
Figure 15 shows a sectional view along line XV-XV ofFigure 11 . -
Figure 16 shows a perspective view of another embodiment of container in accordance with the present invention having refastenable re-closure features associated with the ends thereof, showing the ends in an open configuration; -
Figure 17 is another perspective view of the container shown inFigure 16 with its ends in an open configuration; -
Figure 18 shows the container ofFigures 16 and17 with the refastenable re-closure at one end in a closed configuration. - With reference to
figures 1 to 6 , a first embodiment of tamperevident container 2 in accordance with the invention is illustrated. Thecontainer 2 is made from a foldable sheet material such as paperboard, cardboard or even a plastics material. The particular material and its thickness will depend upon the particular application for thecontainer 2. Thecontainer 2 is erected from a foldable blank 4 which is illustrated inFigure 3 . - The
container 2 comprises acontainer body 6 comprising a first pair of opposedside wall panels side wall panels side wall panels glue tab 18 is hingedly connected to afirst panel 8 of the first pair of opposedside wall panels - The
container 2 further comprises alid 22, 22' at opposed ends 24, 24' of thecontainer body 6. Afirst lid 22 is hingedly attached to thefirst panel 8 of the first pair of opposedside wall panels lid fold line 26. A second lid 22' is hingedly attached to thesecond panel 10 of the first pair of opposedside wall panels second lids 22, 22' is the same, so only the construction and assembly of thefirst lid 22 will be described in detail below. - The
container 2 further comprises first and second closure flaps 28, 30, 28', 30' at the respective ends 24, 24' of thecontainer body 6. As the construction and arrangement of the closure flaps at either end of thecontainer body 6 is the same, only the details of the closure flaps 28, 30 atend 24 will be described in detail below. - The first and second closure flaps 28, 30 at
end 24 are hingedly attached to a respective one of the second pair of opposedwall panels flap fold lines respective locking slots respective side edge side wall panel 10 of the first pair ofside wall panels slots Figure 2 . It will be seen that theside edge 40 of each of the first and second closure flaps 28, 30 is ramped such that the lockingslot side wall panel 10 adjacent the respective closureflap fold line slot proximal portion side edge - Returning now to the lid construction, the
first lid 22 comprises alid panel 50 which is hingedly attached at aproximal edge 52 to the onepanel 8 of the first pair ofside wall panels lid fold line 26. Thelid 22 further comprises a lockingflap 56. - The locking
flap 56 comprises a firstlocking flap panel 58 hingedly attached at aproximal edge 60 to adistal edge 62 of thelid panel 50 about a frangible line ofweakness 64. In this embodiment, the frangible line ofweakness 64 is illustrated as a perforation or line of cuts. In other embodiments, however, the line ofweakness 64 may be formed as a partial cut through the depth of the panel material. The partial cut may be made from the side of the panel which will be outermost in use. - The locking
flap 56 further comprises a secondlocking flap panel 66 which is hingedly attached at aproximal edge 68 to adistal edge 70 of the firstlocking flap panel 58 about a lockingflap fold line 72. As can be seen for example inFigures 2 and5 , when erected, the secondlocking flap panel 66 is folded inwardly about the lockingflap fold line 72 so as to lie behind and in a face to face relationship with the firstlocking flap panel 58. - The
distal edge 74 of the secondlocking flap panel 66 comprises at least onefree edge portion 76 for forming a locking edge. As will be described further below, the lockingflap 56 is insertable into the lockingslots edge 76 of the secondlocking flap panel 66 engages behind the proximal portions of the closure flaps 28, 30 so as to lock thelid 22 in position. - As discussed above, the second
locking flap panel 66 is folded behind the firstlocking flap panel 58 and hingedly attached thereto about the lockingflap fold line 72. However, the secondlocking flap panel 66 is also adhered to the firstlocking flap panel 58 adhesively. - In this embodiment, the second
locking flap panel 66 is adhered to the firstlocking flap panel 58 through atab 80 which is defined in the secondlocking flap panel 66 between a pair ofcut lines 82 which extend to thedistal edge 74 thereof. In this embodiment, the cut lines 82 are L-shaped, theportions 84 of the cut lines 82 extending parallel to thedistal edge 74 allows the aside portions 86 of the secondlocking flap panel 66 arranged to either side of thetab 80 to flex more easily away from the firstlocking flap panel 50 due to the folding of the secondlocking flap panel 66 around the lockingflap fold line 68, thereby spacing the locking edges 76, which are formed on thoseside regions 86 on either side of theadhesive tab 80, to be spaced from the underlying regions of the firstlocking flap panel 50, thereby improving the locking into engagement with the lockingslots Figure 6 . - The
adhesive tab 80 may be adhesively attached to the firstlocking flap panel 58 at anadhesive location 88. An adhesive, such as a hot melt adhesive or a water-based adhesive may be applied to the adhesive location during direction of thecontainer 2. It will be understood that the adhesive attachment of the secondlocking flap panel 66 to the firstlocking flap panel 58 will prevent the secondlocking flap panel 66 simply unfolding relative to the firstlocking flap panel 58. - In this embodiment, the
adhesive tab 80 is formed in a central region of thedistal edge 74 of the secondlocking flap panel 68. - It can also be seen, for example from
Figures 1 ,2 and3 that anopening tab 90 is provided in thelid 22. Theopening tab 90 projects from thelid panel 50 and is formed by acut line 92 which extends from thelid panel 50 across the frangible line ofweakness 64 into the firstlocking flap panel 58. Thecut line 92 therefore interrupts the frangible line ofweakness 64. As can be seen inFigure 1 , theopening tab 90 will allow a user to insert his or her fingernail behind the tab so as to pull open thelid 22. - Having defined the construction of the
container 2, its erection will now be described with reference toFigures 3 to 6 . -
Figure 3 shows the blank 4 for making the container. In a first step, theside wall panels sidewall hinge lines 16 and the container erected into a tubular configuration by gluing theglue tab 18 in position. This stage is illustrated inFigure 4 . - Next, an adhesive may be applied to the
adhesive region 88 of theadhesive tab 80 in the secondlocking flap panel 66 and the secondlocking flap panel 66 then folded inwardly along the lockingflap fold line 68 about in a direction A such that the secondlocking flap panel 66 lies behind and in a face-to-face relationship with the firstlocking flap panel 58. Theadhesive tab 80 is adhesively secured to the inner surface of the firstlocking panel flap 58 at theadhesive region 88. This position is shown inFigure 5 . The closure flaps 28, 30 can then be folded inwardly in directions B and C as shown inFigure 5 such that they substantially close theend 24 of thecontainer body 6. The proximal regions of the closure flaps 28, 30 form the lockingslot sidewall 10 of the container body as shown inFigure 2 . - The locking
flap 56 may then be rotated in a direction D about the frangible line ofweakness 64 and thelid 22 rotated about thelid hinge line 26 in a direction E (as shown inFigure 2 ) such that the lockingflap 56 enters the container body through the lockingslots Figure 6 , the locking edges 76 of the secondlocking flap panel 66 lift away somewhat from the firstlocking flap panel 58 so as to lie behind the respective closure flaps 28, 30. This locks thelid 22 in position. - When a user wishes to open the
container 2, he or she inserts a fingernail behind theopening tab 90 and pulls thelid 22 in a direction F shown inFigure 1 . This rotates thelid 22 about thelid fold line 26. The lockingedge 76 of the secondlocking flap panel 66 prevents this rotation until such time as the frangible line ofweakness 64 which connects thelid 22 to thecontainer body 6 breaks, separating the lockingflap 56 from thelid panel 50. A user may then gain access to the contents of thecontainer 2. The adhesive attachment of the secondlocking flap panel 66 to the firstlocking flap panel 58 will prevent the secondlocking flap panel 66 simply unfolding relative to the firstlocking flap panel 58 during opening of thecontainer 2, which might permit opening of thecontainer 2 without breaking thefrangible connection 64. - This provides a tamper evident feature since it is not possible for the user properly to close the
lid 22 again, as there is no lockingflap 56. - This describes the closure of just one end of the container. The closure of the other end of the
container 2 occurs in a similar manner. -
Figures 7 to 12 illustrate acontainer 102 according to a second embodiment of the invention. - The
container 102 of this embodiment is similar to that of the first embodiment and only the differences compared to that embodiment will be described in detail. - In this regard, the only difference between the two embodiments is in relation to the
adhesive tab 80. In this embodiment, rather than having atab 80 which extends to thedistal edge 74 of the secondlocking flap panel 68, theadhesive tab 180 in this embodiment is defined in thesecond locking flap 68 at a spacing from thedistal edge 74 thereof to provide a continuousdistal locking edge 176. Theadhesive tab 180 is defined by a pair of L-shapedside cuts 182 and atransverse cut 184. The L-shaped side cuts 18 to facilitate flexing of the secondlocking flap panel 66 away from the firstlocking flap panel 58 in the same manner as the first embodiment. - The steps in the erection and opening of the
container 102 are the same as those as in a direction of thefirst container 2 and need not, therefore, be described in detail. As in the earlier embodiment, an adhesive will be applied inregion 188 between theadhesive tab 180 and the underlying firstlocking flap panel 58 to attach the secondlocking flap panel 66 to the firstlocking flap panel 58. -
Figures 11 to 15 illustrate acontainer 202 according to a third embodiment of the invention. - The
container 202 of this embodiment is similar to that of the first and second embodiments and only the differences compared to those embodiments will be described in detail. - In this embodiment, rather than having an adhesive tab defined in the second locking flap panel, an
adhesive tab 280 is hingedly attached to thedistal edge 274 of the secondlocking flap panel 66 about an adhesivetab fold line 282. - The erection of the
container 202 of this embodiment is generally similar to that of the erection of thecontainers Figure 13 , theadhesive tab 280 is folded inwardly about the adhesivetab fold line 282 to overlie theadjacent surface 284 of the secondlocking flap panel 66. An adhesive may then be applied to theadhesive tab 280 in anadhesive region 288 and the secondlocking flap panel 66 then folded about the lockingflap hinge line 68 so as to sandwich theadhesive tab 280 being sandwiched between the first and secondclosure flap panels closure flap panel 58. In some embodiments, as a preliminary step, an adhesive may be applied between theadhesive tab 280 and the secondlocking flap panel 66. - The adhesive
tab fold line 282 forms part of acontinuous locking edge 276 defined at the distal edge of the secondlocking flap panel 66. Theadhesive tab 280 creates a stand-off between the first and secondlocking flap panels edge 276 behind the closure flaps 28, 30, as shown inFigure 15 . - In this embodiment, the
adhesive tab 280 extends only across a portion of thedistal edge 274 of the secondlocking flap panel 66, in a central region thereof. In other embodiments, the adhesive 280 extend across the entiredistal edge 274. -
Figures 16 ,17 and18 illustrate a further embodiment of acontainer 2 in accordance with the invention incorporating a refastenable re-closure feature for closing an end of thecontainer 2 having a lid as earlier described. This refastenable re-closure feature is illustrated as being incorporated in acontainer 2 in accordance with the first embodiment of the invention, wherein theadhesive locking tab 80 is defined in the secondlocking flap panel 66 between a pair ofcut lines 82 which extend to thedistal edge 74 thereof. However, such a refastenable re-closure feature may be incorporated with any of the other embodiments described herein i.e. the embodiments ofFigures 7 to 12 or11 to 15 , at one or both ends thereof. - While described with reference to the
first end 24 of thecontainer body 6, such a refastenable re-closure feature may alternatively or additionally be arranged at thesecond end 24' of thecontainer body 6 for closing the second end. The embodiment illustrated inFigures 16-18 includes a refastenable re-closure feature at both ends. -
Figures 16 and17 show theend 24 of the container in an open configuration, illustrating the components of the refastenable re-closure feature.Figure 18 illustrates thecontainer 2 with theend 24 in its closed configuration once thecontainer 2 has been initially opened, resulting in separation of the lockingflap 56 from thelid panel 50 about the frangible line ofweakness 64.Figure 18 illustrates the manner in which the components of the refastenable re-closure feature releasably interlock the first and second closure flaps 28, 30 together, with thelid panel 50 therebeneath. - The refastenable re-closure feature includes a
locking tab 94 associated with thefirst closure flap 28 and anopening 96, illustrated as a slot, in thesecond closure flap 30. It will be appreciated that alternatively thelocking tab 94 may be associated with thesecond closure flap 30 and theopening 96 may be in thefirst closure flap 28. Theopening 96 is configured to receive thelocking tab 94 and releasably interlock therewith in a closed configuration of the end of thecontainer 2. Thelocking tab 94 is retained by anedge 105 of the opening, which acts as a locking edge. Of course, theopening 96 need not be in the form of a slot, provided that it is able to function in this manner. - The
first closure flap 28 includes are-closure panel 95 hingedly attached to adistal edge 97 of thefirst closure flap 28 about afoldline 101. Thelocking tab 94 is formed by a cutline which extends from there-closure panel 95 across thefoldline 101 into thefirst closure flap 28. The free edge of thelocking tab 94 formed in this manner is denoted 103. When there-closure panel 95 is rotated about the foldline 101 (e.g. up to 90°) to a position as shown inFigures 16 and17 , thelocking tab 94 moves with there-closure panel 95 and thus pivots relative to thefirst closure flap 28 so as to project from thefirst closure flap 28. The direction of rotation will be in an anticlockwise direction from the viewpoint ofFigure 17 in the direction of the arrow A. This enables thelocking tab 94 to be inserted into theopening 96 when thefirst closure flap 28 is folded over thesecond closure flap 30. When there-closure panel 95 is released, it will return to a position as shown inFigure 18 , in a plane closer to that of thefirst closure flap 28. In this closed configuration of theend 24 of thecontainer 2, thefirst closure flap 28 is substantially flat and overlies thesecond closure flap 30, with thelocking tab 94 retained in theopening 96. - A pair of
stubs 99 may be defined on either side of thelocking tab 94, between the edge of thelocking tab 94 and the portion of thefoldline 101 on the respective side of thelocking tab 94. This may be achieved using a suitable configuration of the cutline which defines thelocking tab 94. Thesestubs 99 extend from thefirst closure flap 28 across thefoldline 101 into there-closure panel 95, and will project from thedistal end 97 of thefirst closure flap 28 when there-closure panel 95 is rotated about thefoldline 101 during closing of theend 24 of thecontainer 2, to define acorresponding space 107 between the edge of thelocking tab 94 and the end of the portion of the foldline1 01 on the respective side of thelocking tab 94. The stubs extend in the direction opposite to thelocking tab 95 relative to thefoldline 101 i.e. distally rather than proximally. The presence of the stubs may mitigate stress concentration around the joins between the lockingtab 94 and thefoldline 101, reducing the likelihood of a tear developing in use. The stubs have rounded ends to assist in this function. The stubs may also help to facilitate rotation of there-closure panel 95 about thefoldline 101. - The
opening 96 may be of an arcuate shape as illustrated inFigures 16 and17 , or any other suitable shape, such as a rectangular or crescent shape. Thelocking tab 94 may have a semi-circular shape, as illustrated, or any other suitable shape, such as rectangular or triangular. - The
opening 96 may be located in any location on thesecond closure flap 30, provided it is located relative to thelocking tab 94 such that thelocking tab 94 may be inserted into theopening 96 in the manner described above when thefirst closure flap 28 is located over thesecond closure flap 30 during closing of theend 24 of the container. For example, in the illustrated embodiments, the closure flaps 28, 30 do not each extend the whole way between a pair of opposedside wall panels opening 96 is in the middle of thesecond closure flap 30. However, depending e.g. upon the relative extents of the first and second closure flaps 28, 30 and/or thefirst closure flap 28 and there-closure panel 95, the position of the opening may vary. - The re-closure feature enables the
container 2 to be closed even after the frangible line ofweakness 64 is broken and the lockingflap 56 can no longer lock thelid panel 50 in position. The user will fold thelid panel 50 over theend 24 of thecontainer 2, and then fold thesecond closure flap 30 over thelid panel 50, and thefirst closure flap 28 over thesecond closure flap 30, rotating there-closure panel 95 about thefoldline 101 as illustrated inFigures 16 and17 to cause thelocking tab 94 to project relative to thefirst closure flap 28 for insertion in theopening 96 in thesecond closure flap 30 to thereby releasably lock the first and second closure flaps 28, 30 together. In this way, as shown inFigure 18 , thelid panel 50 is held behind the interlocked closure flaps 28, 30, keeping the container in a closed, compact configuration. InFigure 18 , theregion 100 of thesecond closure panel 30 distal to theopening 96 under which thelocking tab 94 has been inserted, is visible. It will remain evident that thecontainer 2 has already been opened; however the user will be able to re-close thecontainer 2 to keep any contents therein. When desired, the user may disengage thelocking tab 94 from theopening 96 to open theend 24 of the container once more 24 to gain access to the contents thereof. The refastenable closure feature may be used to repeatedly refastenably close theend 24 of the container. - The construction and operation of the refastenable closure at the
other end 24' of the container shown in the embodiment ofFigures 16-18 is identical to that described in relation to theend 24, and may include any or all of the features described in relation to the closure at theend 24. As mentioned previously, a refastenable closure may be provided at either one or both of the ends of the container, and need not be present at both ends as illustrated in the embodiment shown. - In accordance with any of the embodiments of the invention, and regardless of to which embodiment of the container the refastenable re-closure feature is applied, it is envisaged that other forms of refastenable closure may be used, which need not involve a locking tab being defined in the manner of the illustrated embodiment, extending from a
re-closure panel 95 associated with thefirst closure flap 28. For example, a locking tab may project directly from a distal end of thefirst closure flap 28, or be defined within thefirst closure flap 28 in any suitable manner. However, other forms of refastenable closure need not necessarily involve a cooperating tab and opening associated with ones of the first and second closure flaps. Similar alternative arrangements are equally applicable if, in the case of cooperating tab and opening type arrangements, thesecond closure flap 30 has the tab and thefirst closure flap 28 the opening, or, in any type of arrangement, if the refastenable closure is associated with the other end of the container. - It will be understood that the above description is of a number of exemplary embodiments only and that modifications may be made to the embodiments without departing from the scope of the invention. For example, while the containers described herein have tamper evident closures in accordance with the invention provided at both ends of the container, such a closure need only be provided at one end in certain containers. For example, in certain embodiments, where access to the contents of the container is required thorough only one end of the container, the other end of the container may be glued closed.
Claims (14)
- A tamper evident container (2; 102; 202) made from cardboard, paperboard or other lightweight foldable sheet material comprising:a container body (6) comprising a first pair of opposed side wall panels (8, 10) and a second pair of side wall panels (12, 14), the side wall panels (8, 10, 12, 14) being hingedly attached to each other about respective side wall fold lines (16);a lid (22) hingedly attached to one side wall panel (8) of the first pair of opposed side wall panels (8, 10) about a lid fold line (26);first and second closure flaps (28, 30), each hingedly attached to a respective one of the second pair of opposed wall panels (12, 14) about respective closure flap fold lines (32, 34) so as to define respective locking slots (36, 38) between a side edge of the respective closure flaps (28, 30) and the other side wall panel (10) of the first pair of side wall panels (8, 10);the lid (22) comprising:a lid panel (50) hingedly attached at a proximal edge (52) to the one side wall panel (8) of the first pair of side wall panels (8, 10) about the lid fold line (26); anda locking flap (56) comprising a first locking flap panel (58) hingedly attached at a proximal edge (60) to a distal edge (62) of the lid panel (50) about a frangible line of weakness (64) and a second locking flap panel (66) hingedly attached at a proximal edge (68) to a distal edge (70) of the first locking flap panel (58) about a locking flap fold line (72) and folded about the locking flap fold line (72) so as to lie behind and in a face to face relationship with the first locking flap panel (58);a distal end (74; 174; 274) of the second locking flap panel (66) comprising at least one free edge forming a locking edge (76; 176; 276);the locking flap (56) being insertable into the locking slots (36, 38) such that the at least one locking edge (76; 176; 276) of the second locking flap panel (66) engages behind the side edges of the closure flaps (36, 38) so as to lock the lid (22) in position, wherein the second locking flap panel (66) is adhesively attached to the first locking flap panel (58) to prevent the second locking flap (66) unfolding relative thereto, wherein the second locking flap panel (66) is adhered to the first locking flap panel (58) through an adhesive tab (80; 180; 280), characterised in that:
the second locking flap panel (66) comprises a pair of cut lines (82) which extend to the distal edge (74) of the second locking flap panel (66) so as to define an adhesive tab (80) therebetween, and a pair of locking edges (76) on the distal edge (74) on either side of the adhesive tab (80). - A tamper evident container as claimed in claim 1, wherein the adhesive tab (80) is formed in a central region of the distal edge (74) of the second locking flap panel (66).
- A tamper evident container (2; 102; 202) made from cardboard, paperboard or other lightweight foldable sheet material comprising:a container body (6) comprising a first pair of opposed side wall panels (8, 10) and a second pair of side wall panels (12, 14), the side wall panels (8, 10, 12, 14) being hingedly attached to each other about respective side wall fold lines (16);a lid (22) hingedly attached to one side wall panel (8) of the first pair of opposed side wall panels (8, 10) about a lid fold line (26);first and second closure flaps (28, 30), each hingedly attached to a respective one of the second pair of opposed wall panels (12, 14) about respective closure flap fold lines (32, 34) so as to define respective locking slots (36, 38) between a side edge of the respective closure flaps (28, 30) and the other side wall panel (10) of the first pair of side wall panels (8, 10);the lid (22) comprising:a lid panel (50) hingedly attached at a proximal edge (52) to the one side wall panel (8) of the first pair of side wall panels (8, 10) about the lid fold line (26); anda locking flap (56) comprising a first locking flap panel (58) hingedly attached at a proximal edge (60) to a distal edge (62) of the lid panel (50) about a frangible line of weakness (64) and a second locking flap panel (66) hingedly attached at a proximal edge (68) to a distal edge (70) of the first locking flap panel (58) about a locking flap fold line (72) and folded about the locking flap fold line (72) so as to lie behind and in a face to face relationship with the first locking flap panel (58);a distal end (74; 174; 274) of the second locking flap panel (66) comprising at least one free edge forming a locking edge (76; 176; 276);the locking flap (56) being insertable into the locking slots (36, 38) such that the at least one locking edge (76; 176; 276) of the second locking flap panel (66) engages behind the side edges of the closure flaps (36, 38) so as to lock the lid (22) in position, wherein the second locking flap panel (66) is adhesively attached to the first locking flap panel (58) to prevent the second locking flap (66) unfolding relative thereto, wherein the second locking flap panel (66) is adhered to the first locking flap panel (58) through an adhesive tab (80; 180; 280), characterised in thatthe adhesive tab (180) is defined in the second locking flap (66) at a spacing from the distal edge (274).
- A tamper evident container (2; 102; 202) made from cardboard, paperboard or other lightweight foldable sheet material comprising:a container body (6) comprising a first pair of opposed side wall panels (8, 10) and a second pair of side wall panels (12, 14), the side wall panels (8, 10, 12, 14) being hingedly attached to each other about respective side wall fold lines (16);a lid (22) hingedly attached to one side wall panel (8) of the first pair of opposed side wall panels (8, 10) about a lid fold line (26);first and second closure flaps (28, 30), each hingedly attached to a respective one of the second pair of opposed wall panels (12, 14) about respective closure flap fold lines (32, 34) so as to define respective locking slots (36, 38) between a side edge of the respective closure flaps (28, 30) and the other side wall panel (10) of the first pair of side wall panels (8, 10);the lid (22) comprising:a lid panel (50) hingedly attached at a proximal edge (52) to the one side wall panel (8) of the first pair of side wall panels (8, 10) about the lid fold line (26); anda locking flap (56) comprising a first locking flap panel (58) hingedly attached at a proximal edge (60) to a distal edge (62) of the lid panel (50) about a frangible line of weakness (64) and a second locking flap panel (66) hingedly attached at a proximal edge (68) to a distal edge (70) of the first locking flap panel (58) about a locking flap fold line (72) and folded about the locking flap fold line (72) so as to lie behind and in a face to face relationship with the first locking flap panel (58);a distal end (74; 174; 274) of the second locking flap panel (66) comprising at least one free edge forming a locking edge (76; 176; 276);the locking flap (56) being insertable into the locking slots (36, 38) such that the at least one locking edge (76; 176; 276) of the second locking flap panel (66) engages behind the side edges of the closure flaps (36, 38) so as to lock the lid (22) in position, wherein the second locking flap panel (66) is adhesively attached to the first locking flap panel (58) to prevent the second locking flap (66) unfolding relative thereto, wherein the second locking flap panel (66) is adhered to the first locking flap panel (58) through an adhesive tab (80; 180; 280), characterised in that:
the adhesive tab (280) is hingedly attached to the distal edge (274) of the second closure flap panel (66) about an adhesive tab fold line (282), the adhesive tab being sandwiched between the first and second closure flap panels (58, 66) and adhered at least to the first closure flap panel (58), wherein the adhesive tab (280) extends across only a portion of the distal edge (274) of the second closure flap panel (66). - A tamper evident container as claimed in any preceding claim, wherein the side edges (40) of the closure flaps (30, 32) are ramped so as to define the locking slots (38, 40) with the other side wall panel (10) of the first pair of side wall panels (8, 10) only at a proximal end region (42, 44) of the closure flaps (30, 32) thereof adjacent the respective side wall panel (12, 14).
- A tamper evident container as claimed in any preceding claim, wherein the frangible line of weakness (64) comprises perforations.
- A tamper evident container as claimed in any of claims 1 to 5, wherein the frangible line of weakness (64) comprises a partial thickness cut.
- A tamper evident container as claimed in any preceding claim, further comprising an opening tab (90) defined in the lid panel (50) at the frangible line of weakness (64), and interrupting the line of weakness (64).
- A tamper evident container as claimed in any preceding claim, further comprising a refastenable re-closure arrangement that includes cooperating parts associated with each of the first and second closure flaps (28, 30) for releasably interlocking the first and second closure flaps together.
- A tamper evident container as claimed in claim 9, wherein the cooperating parts comprise:
a locking tab (94) associated with one of the first and second closure flaps (28; 30); and an opening (96) associated with the other of the first and second closure flaps (30; 28), wherein the opening (96) is configured to receive the locking tab (94) for releasably interlocking the first and second closure flaps together. - A tamper evident container as claimed in claim 10, further comprising a re-closure panel (95) hingedly attached along a fold line (101) to a distal edge of the one of the first and second closure flaps (28; 30) having the locking tab (94) associated therewith, wherein the locking tab (94) interrupts the foldline (101).
- A tamper evident container as claimed in claim 11, wherein the locking tab (94) is formed by a cutline which extends from the re-closure panel (95) across the foldline (101) into the one of the first and second closure flaps (28; 30).
- A tamper evident container as claimed in any one of claims 9 to 12, wherein a pair of stubs (99) are defined on either side of the locking tab (94) between the edge of the locking tab (94) and the portion of the foldline (101) on the respective side of the locking tab (94).
- A tamper evident container as claimed in claim 13, wherein the stubs have rounded ends.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB1806942.7A GB201806942D0 (en) | 2018-04-27 | 2018-04-27 | Tamper evident container |
GBGB1902207.8A GB201902207D0 (en) | 2018-04-27 | 2019-02-18 | Tamper evident container |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3560854A1 EP3560854A1 (en) | 2019-10-30 |
EP3560854B1 true EP3560854B1 (en) | 2023-07-19 |
Family
ID=62495166
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19171054.0A Active EP3560854B1 (en) | 2018-04-27 | 2019-04-25 | Tamper evident container |
Country Status (3)
Country | Link |
---|---|
US (1) | US10875677B2 (en) |
EP (1) | EP3560854B1 (en) |
GB (2) | GB201806942D0 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11345506B2 (en) * | 2017-05-31 | 2022-05-31 | Westrock Mwv, Llc | Tamper evident tuck end containers |
US11472593B1 (en) | 2019-08-29 | 2022-10-18 | Packaging Corporation Of America | Auto-locking and tamper evident container |
US20210347539A1 (en) * | 2020-05-07 | 2021-11-11 | Hub Folding Box Company, Inc. | Child Resistant Packaging |
DE102021100471A1 (en) * | 2021-01-13 | 2022-07-14 | Ar Packaging Gmbh | Folding box with tamper-evident closure |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB823278A (en) * | 1956-11-30 | 1959-11-11 | William W Cleland Ltd | Improvements in or relating to end closure means of folding boxes |
US3404829A (en) | 1967-07-21 | 1968-10-08 | Stecher Traung Schmidt Corp | Carton locking cover |
US4830270A (en) * | 1988-05-19 | 1989-05-16 | Professional Packaging Limited | Mailing and shipping carton |
US5350108A (en) * | 1992-10-14 | 1994-09-27 | Why Wrap? Incorporated | Self-locking box |
DE9306900U1 (en) * | 1993-04-22 | 1993-07-08 | Hermann Schött GmbH Offsetdruckerei, 4050 Mönchengladbach | Cardboard box |
EP1323635A1 (en) * | 2001-12-13 | 2003-07-02 | Rondo AG | Packaging, particularly a cardboard folding box |
US6814228B2 (en) * | 2002-10-10 | 2004-11-09 | Graphic Packaging International, Inc. | Wrap around carrier for petaloid pet bottles |
FR2850633B1 (en) * | 2003-02-05 | 2005-03-18 | Allardi | INVIOLABLE CLOSURE SYSTEM OF CASE |
US20050199692A1 (en) | 2004-03-05 | 2005-09-15 | Nelson Daniel J. | Blank capable of forming a container having rounded corners |
JP5355125B2 (en) | 2009-02-10 | 2013-11-27 | 株式会社ナリス化粧品 | Packaging box |
DE202010014299U1 (en) * | 2010-10-15 | 2010-12-09 | Cd Cartondruck Ag | folding |
US20170297802A1 (en) * | 2016-04-18 | 2017-10-19 | The Procter & Gamble Company | Consumer product package |
-
2018
- 2018-04-27 GB GBGB1806942.7A patent/GB201806942D0/en not_active Ceased
-
2019
- 2019-02-18 GB GBGB1902207.8A patent/GB201902207D0/en not_active Ceased
- 2019-04-25 EP EP19171054.0A patent/EP3560854B1/en active Active
- 2019-04-25 US US16/394,022 patent/US10875677B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP3560854A1 (en) | 2019-10-30 |
US20190329930A1 (en) | 2019-10-31 |
GB201902207D0 (en) | 2019-04-03 |
US10875677B2 (en) | 2020-12-29 |
GB201806942D0 (en) | 2018-06-13 |
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